An intriguing online puzzle dares participants to find a time traveler disguised among prehistoric humans within a mere five seconds. The captivating scene of ancient civilization cleverly conceals a modern intruder. Attentive observation is crucial, as our minds tend to bypass subtle hints. Brainteasers are more than just fun puzzles. They push the brain to think faster, notice small details, and make...
Thomas Stoltz Harvey pictured in 1994 holding part of Einstein's brain which he'd kept with him for decades (Michael Brennan/Getty Images) Albert Einstein died on 18 April 1955, aged 76. His death marked the end of one of the most influential scientific lives in history. It also marked the beginning of a long, unsettled afterlife for his brain. Einstein was admitted to Princeton Hospital the previous...
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